Portable electric heating and cooking utensil



Sept. 1s, 1934.'

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F. C. KIMMEL PORTABLE ELECTRIC HEATING AND COOKING UTENSIL Filed NOV. 28, 1951 5 Sheets-Sheet .l

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Sept. 18, 1934.

F. c. KIMMEL PORTABLE ELECTRIC HEATING AND COOKING UTENSIL Filed NOV. 28. 1931 3 Sheets-Sheet 2 SeputyS:9 1934. F. C .KHMMELA 1,974,360

PORTABLE ELECTRIC HEATING AND COOKING UTENSIL Filed Nov'. 28 1931 3 sheets-sheet 5 75rd- ATTORNEY 01"@ UTENSEL Frederick Conrad Kimmel, Rochester., N. Y., as-

signer to Frederick Henry Kimmel, Rochester,

application November es, ien, sensi no. stacco 12 claims. (er. zia-si This invention relates to portable electric heating and cooking utensils.

The purposey of the invention is to provide a y portable 'electric heating and cooking, utensil for broiling all kinds ci meat, fish and fowl and which may be also used as a toaster for bread and the like, boiling purposes, or ask a heater for any other purpose. By providing a'utensil in accordance with my invention foods may be 0 broiled etc. without odor and in considerably less time than other ways of cooking and broiling foods ete. i,

One object of the invention is to provide port-n able heating and. broiling' utensils which are simple in construction and inexpensive to manuiac ture yet permitting o long and satisfactory use.

Another object of the inventionv is to provide portable electric heating and broiling utensils of such construction and arrangement of parts so aste permit ready insertion and removal oi the electric heating unit in the Aevent the unit has becomedamaged or burned out lby removing or replacing a single fastener means.

A further object of the invention is to provide utensils of this character having automatic means to control the heat within the same and, invsome cases, to have means to regulate the automatic means for controlling the amount or heat within the utensil.

A still further object of the invention is to provide utensils of this character whereby, in some instances, 'the utensil is used as a cover` for a tray, dish or the like upon which is food to be heated or cooked, or the cover may be placed over the top of a` relatively deep pan, and in other instances the utensil being adapted for use as a receptacle to receive a kettle or the like therein, which is supported on the heating unit to produce boiling etc.

Like reference numbers in the several views of the drawings denote the same parts.

With these and other objects in view, the in- -vention consists in the construction and novel combination and arrangement of partsiherein- 5 after fully described, illustrated in the accom-v any of the advantages thereof.

The invention will be more readily understood by referring. to the drawings in whichFig.l- 1 is a top plan view partly broken away. f l

Fig. 2 is a vertical sectional view on the lines 2-2 of Fis. l.

Fig. 3 is a bottom plan view of the heating unit with the electrical connector attached thereto removed from the utensil.

Fig. i is a sectional view showing the portable utensil used as a cover on the top of a tray.

Fig. 5 is a sectional view showing the portable utensil used as a cover on the top oi a relatively deep pan.

Fig. 6 is a sectional view partly broken away and showing a modification of the heating unit with its attached parts.

Fig. 'l is a 4sectional View onthe lin'es '3 7 of Fig. 3.

Fig. t is a fragmentary sectional view of the threaded boss.

ma. 9 is a perspective view oi the cam adjustment member. Y Fig. l0 is a modication of the invention shown ing the utensil in section and the heating unit and its attached parts in full'lines.

Fig. l1 is a top plan view of the heating unit re= moved from the utensil.

Fig. 12 isa bottom plan view oi the heating unit and its attached parts removed from the utensil. Fig. 1'3 is a fragmentary plan view showing the under side of the utensil and the regulator knob and dial; and

Figs. 14 and 15 are wiring diagrams of the invention as disclosed inFigs. 10, l1 and l2.

In the drawings the portable utensil is shown at '1. This utensil is pan-shaped and consists of side walls 2 and a bottom 3. One oi' the side walls is'provided with an opening 4 adjacent the bottom 3 of the utensil. A suitable handle 5 is secured to the side wall of the pan-shaped member by rivets or the like as at 6. The bottom porjtion 3 ofthe pan-shaped member is provided preferably at its center with an opening 7 and there is also provided on the exterior bottom portion 3 suitable supports in the form of feet 8. The feet 8 are insulated as shown at 8', which will prevent marring of table tops and the like upon which the utensil is placed. Suitable vent openings 3' are also provided in the bottom portion 3.

Any'number of these vent openings might be used.'

Arranged within the pan-shaped member 1 is an electrical heating member 9. This heating member consists of a plate 10 composed of insulating material and preferably circular in outline and is provided on its front face with a series of concentric relatively deep grooves 11. In the grooves 11 thereare positioned electric heating resistance wires 12, in the form of coils, such. wires 2 y ff or coils being below the plane surface of the plate. A relatively long, narrow arm 13 secured to the rear face A14 of the plate 10 by means of suitable screws 15 and 16. The face of the plate 10 is provided with recesses 15' and 16 for the reception of the heads of the screws 15 and 16 respectively, so' that the heads of these screws are below the plane of the face of the plate 10. Adjacent the inner end of the arm 13 there is provided, and preferably integral therewith, an interiorly threaded boss 17. The outer end 18 of the arm terminates into anelectrical connector r:i9 which is in the form of a tubular socket and contains l5" the connector prongs 20. The connector prongs 20 extend through the closed-end of the socket and are provided with suitable securing means 20 in the form of nuts for securing the electrical conductor wires A". Intermediate of the interiorly threaded boss 17 andthe connector socket 19 there is provided another and preferably smaller interiorly threaded boss 21, also preferably int/egral with the arm 13. The screw 15 extends through an opening 22 in the plate 10 and engages the screw threads in the threaded boss 21 and the screw 16 extends through an opening 23 in the plate 10 and engages the screw threads of the boss 1'7. In this manner the arm 13 carrying the bosses 17 and 21 and the connector socket 19 is secured to the bottom face 14 of the plate 10 and these elements then constitute a single removable and replaceable unit. The screw 16, as before stated, extends through the opening 23 in the plate 10 and is in engagement with the screw threads of the boss 17 andthe threaded end of the screw projects beyond the end of the boss 17 asshown in Figs. 2, 4 and 6, and is adapted when the connector socket 19fhas been inserted in the opening 4 to extend through the opening 7 in the bottom 3 of the utensil. The threaded end of the screw 16 is adapted to receive a securing nieans 24 in the form of a nuts. A suitable washer 25 having an opening which surrounds the screw 16 may be provided intermediate the boss 17 on lthe inside of the bottom 3 of the utensil.

the heating unit carrying the arm and connector socket therewith is removable from the utensil.

50' InV other words, the securing means 24 constitutes a single means of fastening or securing the heating unit within the utensil.

In Fig. 4 the utensil or pan-shaped member 1 is s hown as covering a tray B.k The tray B may also be provided with supports 8 in the form of feet. It is understood that the tray is to contain food or the like which is to be heated or cooked. The aforementioned description ofv parts applies to this figure, and oneof the various uses of the utensil is disclosedherein.

In Fig. 5 a cooking utensil which is preferably used for broiling roastsvof meat, fowl etc. is shown. The portable electrical heating or cooking utensil or pan-shaped member 1 is shown as covering a spacing member 0" and the tray is shown at B.' 'I'he spacing member C is preferably cylindrical and has its bottom end curled as at 26; At the upper end of the side wall 27 there is provided a flange 28 extending horizontally outwardly from theside walls 27 of the member C and the outer end of the iiange 28 extends v'vertically upwardly` as at 29. The-formation-'of the upper end of the spacing .member C pro- .vides a circumferential horizontal seat around its entire upper end. 'In some instances it is desirable to use a protector for the heating element 9,

Lacasse This protector may be of concavo-convex formation as shown at 30 and having a flanged end 31. The flanged end 31, of course, extends circumferentially of the Iconcavo-convex member 30 and rests on the seat 28. The pan-shapedplished. Of course, there are otheruses to which this form of utensil is well adapted.

In the modification of the linvention as disclosed in Figf 6 of the drawings, the heating element 9 is attached to the arm 13 in the same manner asl heretofore described. The arm 13 is provided with an opening 33 and the heating member 9 is provided with an opening 34. These two open- Y ings 33 and 34 are adapted to register when the arm 13 has been secured to the heating element 9 as aforedescribed. A cam 35 provided with a cam face 36 at its upper portion and terminating into a reduced hollow sleeve 37 is adapted to be rotatively mounted in the opening 33 of the arm 13. The upper enlarged portion of the cam is adapted to rest on the under side of the arm 13 as shown at 38. The cam 35 is constructed of insulating material and has secured in the hollow portion 39 a screw threaded metallic ferrule 40. A screw 41 is adapted to be inserted in the opening v44 in the heating member 9 and the heating member 9 is provided with a recessed portion 41' to receive the head of the screw. The other end of the screw 41 is provided with screw threads which are adapted to engage the screw threads of the metal ferrule and rotation of the cam is accomplished by turning the screw 41.

Adjacent the cam 35 the arm 13 is provided with a screw threaded opening 42. Arranged over the opening 42 there is provided a block of insulating material 43 whichv is provided with a central aperture 44. Secured to the block in any suitable manner as at 45 is one member of a circuit maker and breaker 46. On top of the insulating block 43 there is providedthe other member of 'the circuit maker and breaker 47 which, is attached to the top of the block 43 by'means of/a screw 48 which extends through the member 47 and through the opening 44' in the block and into the screw threads in the opening 42 inthe arm` f13., vThe member 47 of the circuit maker and breaker is in the form of a conventional thermostat which consists `of a laminated structure of two metals of diiferentcoeicients of expansion.` 'The portion 36 of the circuit maker and breaker is provided with a contact at its end as shown at 49 and the thermostatic member 47 ofthe circuit maker and breaker is provided at its end with a contact as at 50. The member 46 of the circuit maker and breaker extends from its point of connection to a point directly above the cam 35 as also does the thermostatic memberof the I circuit maker and breaker 47. The contacts49 and 50 are normally 'in engagement with each other andthe circuit fromY thesocket connector ist 19 extends from the conductor wires 51 and 52 through theportion 47 of the circuit maker and breaker and through the portion 46 of the circuit' maker' and breaker and then into and through the heating resistance wires 12. When a prede- 49 and break the circuit to the coils in the resist-a ance wire. By turning the screw 41 it will be seen that the cam 35 will be rotated and can be brought into engagement with the member 46 of the circuit maker and breaker and thereby adjust the portion 46 so as to regulate the thermostat portion 47 to break the circuit at various temperatures. lThe conductor wires 5l and 52 are secured to the socket by means or suitable nuts or other fastenings 53.

In Fig. 10 a further modification of the invention is disclosed. It is to be understood that the plate 9 and the arm 13 which carries the interiorly threaded bosses 17 and 21 are secured to the utensil or pan-shaped member 1 in the same manner as hereinbefore described. That is, the connector socket 19 which is integral with the arm 13 is placed through the opening 4 in the side w'all o f the utensil or pan-shaped member l and the screw threaded extension oi the screw 16 extends through an opening 7 in the bottom 3 of the utensil and then the securing means in the form of a nut 24 isattached to the end of the screw 16. A manually controlled regulator 54 1 which has one end screwthreaded as at 55 and has a knuried knob 56 at its other or outer end, is mounted inv a screw threaded opening in the arm 18.' The knurled knob 56 extends through an opening 57 in the bottom 3 of the utensil 1 and is controllable exteriorly of the utensil. Suitable graduations 57' may be provided on the bottom 3 and the head 56 is preferably provided with a pointer 58. 'I'he screw 15 is screw threaded into the interiorly screw threaded boss 21 in the same manner as shown in? Fig. 2 except that in the mod, ication shown in'Fig. l0 the screw threads of the screw extend below and exteriorly of the boss 21.

A plate 57a is provided with a suitable opening and is mounted on the screw threaded extension on the screw 15 as shown in Fig. l2 and a securing means in the form of a nut 58 fastens the plate 57 to the boss 2l. 'I'his plate 57S is preferably of rectangular formation and is provided with suitable openings which receive screws 61 and 62 respectively which form binding posts for the connector wires. The connector wires-are held to such binding posts by suitable nuts 63 and 64.

The plate 57L1 is 'spaced by its mounting on the boss 21 from the bottom or the arm 13 and is preferably provided `on its top and bottom 'with suitable insulations 65 and 66 respectively. Or, of course, the plate itself may be made oi.' insulating material. The plate 57 in addition to supporting the binding posts 61 and 62 also `forms a support for an electrical circuit maker and breaker 67. One of the arms 68 of the circuit maker and breaker is provided `with an opening and isfplaced around the binding posts 60 and has one end'secured to the .plate by means of a suitable screw 69. The other varm of the circuit maker and breaker 70 is secured to the other side of the plate and is held inengagement therewith by the binding post 61. The members 68 and 70 of the circuit maker and breaker are provided adjacent their free ends with contacts 71* and 72 respectively. 'I'he free end of the arm 68 o! the circuit maker and breaker is bent substantially at a right angle as at 73 and extends beyond the contacts 71 and 72. A thermostat in the form of a narrow fiat piece of metal 74 is secured to the arm 13 .by means of a screw or like securing means .75 preferably at its center. One end of the thermostat 74 is c ut away and is substantially U shaped, as shown at 76. The other end of the thermostat 74 is provided with a means. in the form of an insulated rivet or the like 76B. f Suitable insulation in the form of mica disks 76 'are provided adjacent the insulatingmeans 7,6l on the thermostat bar 74 at its top and bottom. The securing means 75 for the thermostat 74 permits of movement at both ends ofthe thermostat. The lscrew threaded end 55 of the regulator 54 extends between the substantially U Ishaped cutout end of the thermostat 74 and is screw threaded into an interiorly screw threaded opening or recess 76b in the arm 13. The other end of the sthermostat 74 and the insulating means 76 is normally in engagement with the end 73 of the portion 68 of the circuit maker and breaker and the contacts 71 and 72 of the circuit maker and breaker are normally in engagement with each other. It will be seen then that when a predetermined temperature has been reached the thermostat 74 will curl or turn away from the bottom ofthe plate 9 and in doing so, the portion 76 of the thermostat being in contact with the extension 73 on the arm 68er the circuit maker and breaker, the circuit through the switch, will then be broken by the thermostat. Alit will further bev seen that by turning the knurled knob 56 of the regulator 54 and the :fact that the regulator is provided with an enlargement. which is in engagement with the U shaped end of the thermostat 74, and the thermostat being loosely mounted on the securing means 75, that an adjustment of the thermostat is accomplished, and which permits of the insulated end of the thermostat to be moved into and away from the extension 73 of the movable member 68 oi' the circuit maker and breaker, thereby providing for the breaking of the circuit to the resistance Wires at various temperatures by means `oi' regulating the thermo= by the letter Df and" the inner. or shorter ofthe two resistance wires is denoted by the let= ter E". As shown in Fig. 11 these wires are substantially Vin the -form of a helix when placed in the grooves in-the plate 9 and they both start at a point adjacent the connector socket 19 andl extend substantially t0 the center 0 7 the heating element 9. In the modication of the invention as shown in Figs. ll and 12 the connector socket `19 is shown as being provided with three terminals or prongs 78, 79 and 86. As shown in Fig. 12 these prongs 78, 79 and 80 are. provided exteriorly of the closed end or the socket with screw threaded portions upon which suitable securing nuts 81 and conductor wire securing means in the form of nuts 82 are provided. Attached to one end of the prong 78 there is a conductor wire 83 which, in turn, is attached to the binding post 61 `which carries one member 70 of the circuit maker and breaker 67. A conductor wire 84 is attached to the binding 'post 62 and extends through the bottom of the plate 9 to the long resistance heating coil D. The prong 79 at its .end has secured thereto by means of the nut 82 a conductor wire which l terminates into the short resistance heating coil E and the prong 80 has secured thereto by means of the nut 82 two wires 84 and 85 which los iis

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Y issimply turned over and placed into the conarethe ends of theresisting heating wires D and E respectively.

By referring to the wiring diagrams as shown in Figs. 14 and 15 a clearer understanding of the heating and ow of current throughv the heating resistance wires D and E will be had. It is to be kept in mind that the purpose of the invention as disclosed in Figs. 10 to 15 inclusive is to provide a portable electric broiler, cooker etc., which may be regulated to reach various high degrees of temperatures and then by means of the thermostat '74 and switch 6'? the temperature will automatically-be lowered. Of course, the degree of temperature may be regulated by adjusting the lregulator 54 by simply turning the knob 56 and having the pointer 58 directed to the temperature desired.

In the diagram shown in Fig. 14 the letters e, f and g denote the three terminals or sockets in an attachment plug `to receive the prongs y18, 79 and 80 of the connector socket 19. The numerals` '78, '79 and 80 indicate the prongs '18,'79 and 80 as shown in Figs. 11 and 12. By inserting an attachment plug with the sockets e, f and g over the prongs 78, 79 and 80, the incoming electric current will ow through the single A wire, 83 and` through both of the electric heatcourse, then out through f and g.

ing resistance wires or coils D and E and, of In other words, with the attachment plug inserted as shown in the diagram Fig. 14, both of the resistance wires D and E are heated.

When it is desired to heat only the resistance heating wire or coil D, as shown in Fig. 15j, the attachment plug carrying the socketsv e, f and y nector socket 19. In this vmanner. the incoming electric current through the wire e passes through the 'connector wire 83 through lthe switch 6'1, through theheating resistance wire coil D and then Aout through the wire g. It will be seen that, when the attachment plug is inserted, as before stated, the heating resistance' wire E will not be heated by the incoming electric current.

It is clear then, that when the attachment plug is inserted in the socketv Y19 in accordance with the diagram shown in Fig. 14, the incoming electric current to the wire e will pass through and heat both of the heating resistance wires D and E, will then be grounded through the wires f and g and, when the attachment plug is reversed or turned over in the socket 19 in accordance with the diagram shown in Fig. 15

' the incoming electric current will. ilow only struction. 1 The ready removal and insertion of the heating unit which carries the Vconnector socket .is accomplished by sinply removing a single securing means in the form of a nut which is exterior of the utensil. There are no wires and there is also means provided to bring into operation two heating`resistance coils, orA one of them may be disconnectedfrom the circuit, all of which is accomplished by the insertion of an attachment plug in a particular manner in a connector socket which is attached to the heating unit, there being no wires to be connected or disconnected by the user.

While the invention has been described and is primarily used in the portable type of broilers, cookers, etc., it is to be understood and kept in mind that the particular heating unit might Well be adapted for uses in stationary devices such as heaters, cooking stoves and the like.

What I claim as myv invention and desire to to secure by Letters Patent is:

1. A portable electric heating or cooking de vice comprising ya cover having a haring side wall adapted to be placed over a tray or the like upon which is food to be heated or cooked, a handle for the cover which extends substantially horizontally from the side wall of the cover, an electric heating element arranged Within said cover, an electric tubular socket connector secured to said heatingelement and projecting outwardly through a side wall ofthe cover, adjacent the inner end of said handle and having its outer open end extending beyond'the side wall of said cover for connection with a source of electric current. 105

2. A portable electric heating or cooking de- Y `vice comprising a cover having a mouth and adapted to be placed over a tray or the like upon which Ais food to be heated or cooked, an electric heating element within the cover, means for securing the heating element therein, an electric connector including an arm secured rigidly tosaid heating element and a socket rigidly carried by the arm at the outer end of thelatter and extending exteriorly of said cover, the said means vfor securing the heating element being removable, whereby the heating elementarm and the socket may be removed I'as a unit outwardly through the mouth of the cover from the cover as a unit. 3.. An electric heating and cooking device comprising a pan-'shaped member having an open mouth, a heating element, means for detachably securing the heating element within said member, an electric connector secured to said heating element and projecting vthrough the side wall of the pan-shaped member and having an opening which opens outwardly exteriorly of said member, whereby upon rer'novalv of said detachable securing means, the electric heating element with the connector secured thereto may be removed as a single unit outwardly from the panshaped member through the mouth thereof iii the event the heating element becomes damaged or burned out.

4.A-port able electric heating or cooking device comprisinga pan-shaped member including a side wall and a connecting wall and havingan opening in theside wall, a substantially horizontally disposed handle connected to the side wall, a heating element within the pan-shaped member, a-single element for securing the heating element in the pan-shaped member, an electrical conductor interposed between said connecting wall' and the heating element and electrically 145 connected with the latter and having a terminal projecting through the aforesaid opening in the side wall of the pan-shaped member whereby upon removal of said single fasteningelement th heating element and said conductor may be means on said arm for securing the arm to one face ofthe heating element, means also on said arm for detachably securing the heating element and arm within said member, whereby upon reremovedfrom the pan-shapedmember outwardly through the mouth of the latter from between pan-shaped member, means on said arm for se-v curing the arm to one face of the heating element, and means also on said arm for detachably securing the heating element and arm within said member, whereby upon removal of said detachable securing means the heating element with the arm and socket secured thereto may be removed as a unit outwardly through the mouth of the pan-shaped member in the event the heating element has become damaged or burned out.

6. A portable electric heating or cooking device comprising a pan-shaped member having a ilaring side wall flaring outwardly to an open mouth and also having an opening in its side wall, a heatingA element within the member, a relatively long narrow arm secured to one face of the heating element and having one end projecting beyond the same, a short tubular socket formed at such projecting end of the arm and extending longitudinally thereof outwardly through said opening whereby an attachment plug may be placed therein exteriorly of the pan-shaped member,

moval of said detachable securing means the heating element with the arm and socket secured thereto may be removed as a unit outwardly through the mouth of the pan-shaped member in the event the heating element has become damaged or burned out, thermostatic .control means `mounted on said arm, and means carried by thearm to regulate the thermostatic control.

7. As an article of manufacture, an electric heating element comprising a heating member carrying a heat resisting element, an arm secured to said member'I and projecting outwardly beyond the member, and a relatively short tubular socket formed at such projecting end and extending longitudinally therefrom to receive an attachment plug. f l

8. As an article of manufacture, an electric heating element comprising a heating member carrying a heat resisting element, a relatively long narrow arm secured to one face of the heating member and atone end projecting beyond the member, and a relatively lshort tubular socket formed at such projecting end and extending longitudinally therefrom to receive an attachment plug. Y l

9. A portable electric heating or cooking device including a pan-like member usable as a,cooking unit or as a cover for a utensil having a commodity thereinto be cooked, including a relatively narrow side wall having an open mouth and a connecting wall forming a top or bottom wall depending upon whether the device is used for cooking purposes or as a cover for a. cooking utensil, an 'electric heating element arranged within said member and spaced from said walls, an electric connector having 'connection with said heating element and arranged between the heating element and said connecting wall'and extend- A' ing exteriorly of the pan-like member through said side wall, and a single fastening means arranged centrally of the heating element to secure the same in operative relation with the pan-like member and whereby upon removal of the single I fastening means the heating element may be removed frorn normal fixed operative relation with the pan-like member.

10. A portable electric heating or cooking device including a pan-like member including a top or bottom wall and side walls, an electric heating element arranged within said pan-like member in spaced relaton to the top or bottom portion of the pan-like member to'provide an'interspace between the top or bottom of the pan-like member and the heating element, the pan-like member `having a Ventilating opening leading from said inner space, a screw bolt passing centrally through the top or bottom member and centrally through the heating element, a nut having working fit on said screw bolt whereby tosecure the heating element in normal xed operative relation to the panmember, and an electric attaching device having operative electrical connection with the heating element and extending exteriorly of .the pan-like member.

11. Asan article of manufacture, an electric heating element comprising a heating member carrying a heat resisting lelement, a separate arm detachably secured to one face of the heating member and at one end projecting outwardly beyond said'v member, and a relatively short socket formed at the projecting end of said arm and `extending longitudinally therefrom in offset relation thereto to receive an attachment plug.

12. As an article of manufacture, an electric heating element comprising a heating member carrying a heat resisting element, a separate arm detachably secured to one face of the heating member and at one end projecting outwardly beyond said member, and a relatively short socket formed at the projecting end of said arm and extending longitudinally therefrom in offset relation thereto to receive an attachment plug, the

inner end of the .socket having connector prongs for cooperation with the attaching plug, said arm having an opening therein adjacent said socket for the passage of the terminals of the heat resisting element to said prongs of the socket.

' FREDERICK Corman mum.. 

